Yon Soo Suh’s interests lie in developing and applying quantitative methods to promote more accurate modeling, interpretation, and use of educational data in assessment settings and empirical research. She specializes in latent variable modeling with a focus on understanding fine-grained psychological and cognitive processes underlying various response data. Prior to joining NWEA, Yon Soo worked with institutions such as the Smarter Balanced Assessment Consortium, PBS Kids, and the Korean Institution of Curriculum and Education while at UCLA CRESST. Her projects included psychometric analyses of large-scale assessment data, analysis of telemetry data from digital educational games, and scale development and validation. Yon Soo holds a PhD in education, focused on quantitative methods, and a master’s degree in statistics from the University of California, Los Angeles. She also received a master’s degree in education and a bachelor’s degree in English language and literature, along with a national teaching certificate for English, from Yonsei University in South Korea.